Dice roller

2
Dice
2d6
Total
8
Rolls
0

Total 8

Tap Roll or press Space.

How do I roll dice online?

Pick the dice, from d4 to d20, and how many, from 1 to 10. Tap Roll or press Space. You see each die and the total, and your last rolls stay in the history. Every face has the same chance, from the secure random numbers of your browser. A share link shows the same roll.

How to roll dice online

  1. Pick the kind of dice: d4, d6, d8, d10, d12 or d20.
  2. Pick how many, from 1 to 10, with the minus and plus buttons.
  3. Tap Roll, or press Space. You see each die and the total.
  4. Press Copy link or Share to show the roll to a friend.

Your last 12 rolls stay in the history under the dice, until you leave the page.

The kinds of dice

A die is named by its number of sides: a d6 is the usual cube with dots, and a d20 has 20 faces numbered 1 to 20. Tabletop role-playing games use the whole set: d4, d6, d8, d10, d12 and d20. Written rolls use dice notation: 3d6 means three six-sided dice, added up.

On a real d10, the 10 often shows as 0. This roller shows it as 10, so the total is always the sum of the faces.

The odds of two dice

Two six-sided dice can land in 36 ways. The total 7 has the most of them, 6, so it comes up once in 6 rolls on average. A 2 or a 12 has only one way each: once in 36 rolls. Doubles also come up once in 6 rolls.

Need a yes or no instead? Flip the coin flip, or spin the number wheel.

Questions

What do d4, d6 and d20 mean?

The number after the d is the number of sides. A d6 is the usual cube, and a d20 has 20 faces. 3d6 means three six-sided dice, added up.

Are the dice fair?

Yes. Each die takes a random number from crypto.getRandomValues, the secure random source of your browser, and every face has the same chance. A roll does not depend on the rolls before it.

What is the most likely total of two dice?

7. Six of the 36 ways two six-sided dice can land add up to 7, a chance of 1 in 6. A 2 or a 12 has only one way each, a chance of 1 in 36.

Can I use it for a board game or a role-playing game?

Yes. Pick the dice that the game asks for, such as 2d6 for most board games or a d20 for most tabletop role-playing games. The total adds up every die of the roll.

Can I show a roll to a friend?

Yes. Press Share or Copy link after a roll. The link holds the dice and the faces, so your friend sees the same roll.

Does the dice roller work on a school Chromebook?

It is a normal web page on lifesim.com with nothing to download, so it runs in Chrome on a Chromebook. Some school filters block every game site, so we can't promise that yours allows it. Once the page is open, it needs no network.